CVE-2026-45764

EUVD-2026-75757
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a protocol change while processing HTTP/2 traffic could lead to type confusion in Suricata. Crafted traffic may cause Suricata to crash, resulting in denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP/2 parsing if it is not required.
Type Confusion
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 49.75%
Affected Products (NVD)
VendorProductVersion
oisfsuricata
7.0.0 ≤
𝑥
< 7.0.16
oisfsuricata
8.0.0 ≤
𝑥
< 8.0.5
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
suricata
forky
1:8.0.7-2
fixed
sid
1:8.0.7-2
fixed
trixie
ignored
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
suricata
bionic
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
xenial
needs-triage
Common Weakness Enumeration
References
https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr
https://redmine.openinfosecfoundation.org/issues/8492